Spindle stop-motion attachment for spinning machines



'Jfilys 1924. 1,500,982

E. c, CUSHMAN S PINDL E STOP MOTION ATTACHMENT FOR SPINNING MACHINES FiIed Ju 13. 1923 WITNESSES nwmmn .gzflAg g AITORNEY8 Patented July 8,, 192 4,

ranmer casement or. wEs'rEaLY, RHODE ISLAND.

' Application filed July 13, 1923. "Serial N0.65 1;364.

TaaiZZ whom it may concern: 7

Be it known that I, ERNEST C. CUsrriiAN, a citizen of the United States, and a resident of Westerly, in the county of "Washington and State of Rhode Island, have invented new and useful Improvements in Spindle Stop-Motion Attachmentsnfor Spinning Machines, of which the following is a 'full, clear, and exact description; o

i This invention relates to attachments for stop motions provided in conjunction with spinning machines.

v Ordinarily in constructing sp nning machines, the spindlesfare rigidly'mountedon the spinning rails. Provided in conjunction with .each spindle 'is awhorlwhich may be projected into engagement with the spindleoperati-ng member when itis necessary to stop a particular spindle. Theoperation of the whorl to disengage the spindle-operating member from the spindle moves the spindle- ,operatingi member away from the latter. Thus the disengaging oi thespindle-operas ing member fi"om 'one spindle affects the adjacent spindle, causing what is known as slack twist, To eliminate the defects re ferred to above, a swing-typespindle has been developed, but this typeof' spindle cannot be applied to the ordinary spindle rails.

The general object of this invention is l the provision of a simply constructed, durable and eiiicient attachment for spinning machine stop motions adapted for mounting on any spinning railand capable of disassociating any spindle from the spindle-operating member and stopping it without interfering with the operation or" adjacent spin dles.

This object is accomplished by providing a base adapted for mounting on any spindle rail, slidably mounting on the base a spindle-carrying member provided with means for normally retaining the spindle in engagement with the spindle-operating means, and associating with the spindle-carrying member a member for operating it to withdraw the spindle from the spindle-operating means.

This and other objects of the invention will be more clearly understood from the following detailed description and accompanying drawings.

Figure 1 is an end elevation of the spindle stop motion attachment;

Figure 2 is a side elevation of the sp ndle stop motion attachment showing its con strnction; a 1 Figure '3 is a section along the line 3 3,

Figure 2, showing a top plan view.

Referring to the above-mentioned drawings, a spindle rail lO'of the ordinary type is shown carrying the spindle stop motion attachment. This spindle stop motion attachment includes a base 11, in the form of a Ushaped plate, provided with a'depending lug 'li'extendin-g at right angles to the base. This lug is provided for engaging the spindle rail to retain the base rigidly in position when it is connected to the spindle rail 10 by a bolt 15. A plurality'of lugs 12 are formed on the base 11 and have their upper ends bent inward so as to lie parallel to the base. These ends olt'the lugs 1-2 lying parallel to the base and-spaced therefrom present guides'in which a plate l3'issl-idably mounted. The means described above for attaching the base to the spindle railj in cludes a bolt 15 and a depending lugjl t-in theform of a plate. It will be readily seen that-this type' o-{f basemay be m'ountedon any type of spindle rail; j I

Formed in the outer end of the plate is airopeningm for receiving the beveled head 20 of a dog 21. Extending upward from the plate 13 and integral with the wall of the plate defining :the inner sideo'f the opening 19 is a lug 18. This lug has a vertical groove 22 formed therein for re ceiving the apex of a V-shaped spring 23. The arms of the V-shaped spring 23 seat on lugs 16 formed 011 the base 11. This spring 23 serves to normally project a spindle 24 carried by the plate 13 and depending between the arms of the U-shaped base 11 against a belt 25 which serves as a driving member for the spindle. The dog 21 is attached to a rod 26 operated by the stop mo- 7 tion of the spinning machine. In order to properly position the dog 21, it is provided the spindle 24 formed therein. The curved face of the notch 30 maybe lined with any material such as leather or the like normally used for mounting on brakes. ,Thus the plate 31 is converted into a brake for the spindle 24.

The operation of this device is as follows: When a thread breaks during the operation of a spinning machine,- the stop motion operates the rod 26, raising the dog 21.

'When the dog 21 is raised the beveled head is projected into the opening 19, drawing the plate, as viewed in Figure 3, downward, moving the spindle 24 away from the belt 25. The depending portion of the spindle V 24 moves between the arms ofthe U-shaped base 11. When the spindle has been moved away from the belt 25 it is projected against the brake 31, stopping its rotation. After the thread has been connected, the dog 21 is withdrawn from the plate 13, permitting the spring 23 to project the plate 13, as viewed in Figure 3, upward, carrying the spindle 2& into engagement with the belt 25.

I would state in conclusion that while the illustrated example constitutes a practical embodiment of my invention I do not limit myself strictly to the exact details herein illustrated since manifestly'the same spinning machines provided with a spindleoperating member, comprising a basefor mounting on the spinning machine, a plate movably mounted on the base, a spindle car ried by said plate and normally retained in engagement with the spindle-operating member, means directly engaging the plate to move the spindle out of engagement with the spindle-operating member, and a brake for engaging the spindle when it is moved out of engagement with the spindle-operate ing member.

4. A mechanism of the character described, comprising a sliding plate,a spindle on the plate, motion transmitting means normally engaging the spindle, and, a dog having a cam face to engage the plate and move the same to a position to disengage the spindle from its motion transmitting means. 7 y

5. A mechanism of the character described, comprising a sliding plate, a spindle on the plate, a belt normally engaging the spindle and transmitting motion thereto, said plate having an opening therein, and a dog movablethrough said opening and adapted to engage a wall thereof to move the plate to a polsition to separate the spindle from-the ERNEST CLARENCE CUSHMAN. 

